why is the chapter called boobie who?

Boobie's days of football are numbered. The coaches are well aware that Boobie needs surgery and that trying to play is his last act of desperation. Still Boobie is given the green light to play in the next game. He suits up on Friday night against the Abilene High Eagles with his familiar Nike cleats and Terminator X towel. Booby finally gets to play in the second quarter. He bounds onto the field outwardly showing his old confidence. Inside, however, Boobie is scared. He knows that he is one strained knee injury from football oblivion. He gains four yards and then carries the ball eight more times. He displays brief flashes of his old brilliance but the sad truth is that Boobie is not the same. He is tentative, unable to cut up the field without hesitating a split second longer. He knows his knee is exposed, it is his Achilles heel and everybody knows it.

Booby used to be a popular star player but without football he is nothing: just a footnote in Permian history.